I have extended the section that considers the SLA as the primary use case for monitoring. More on related works (still incomplete) and a couple of figures added. The direct link is this<http://redmine.ogf.org/projects/occi-wg/repository/revisions/0129ec614822399354d6bd0dbe620f0eff115bd7/entry/monitoring/OCCI_monitoring.pdf> . -- Augusto Ciuffoletti Dipartimento di Informatica Università di Pisa 56100 - Pisa (Italy)